[gegl] box-blur: Fix syntax error and wrong abyss in OpenCL version

[Daniel Sabo <daniels src gnome org>]

commit 2edc129baffa8aec2c9ac5d1e003caf758ac0a8f
Author: Daniel Sabo <DanielSabo gmail com>
Date:   Sat Oct 19 02:52:51 2013 -0700

    box-blur: Fix syntax error and wrong abyss in OpenCL version

 opencl/box-blur.cl           |    4 ++--
 opencl/box-blur.cl.h         |    4 ++--
 operations/common/box-blur.c |    2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/opencl/box-blur.cl b/opencl/box-blur.cl
index f99856e..e99bea4 100644
--- a/opencl/box-blur.cl
+++ b/opencl/box-blur.cl
@@ -17,7 +17,7 @@ __kernel void kernel_blur_hor (__global const float4     *in,
         {
           mean += in[in_index + i];
         }
-      aux[aux_index] = mean / (2 * radius + 1);
+      aux[aux_index] = mean / (float)(2 * radius + 1);
     }
 }
 
@@ -40,6 +40,6 @@ __kernel void kernel_blur_ver (__global const float4     *aux,
           mean += aux[aux_index];
           aux_index += width;
         }
-      out[out_index] = mean / (2 * radius + 1);
+      out[out_index] = mean / (float)(2 * radius + 1);
     }
 }
diff --git a/opencl/box-blur.cl.h b/opencl/box-blur.cl.h
index 3d168fb..bfed601 100644
--- a/opencl/box-blur.cl.h
+++ b/opencl/box-blur.cl.h
@@ -18,7 +18,7 @@ static const char* box_blur_cl_source =
 "        {                                                                     \n"
 "          mean += in[in_index + i];                                           \n"
 "        }                                                                     \n"
-"      aux[aux_index] = mean / (2 * radius + 1);                               \n"
+"      aux[aux_index] = mean / (float)(2 * radius + 1);                        \n"
 "    }                                                                         \n"
 "}                                                                             \n"
 "                                                                              \n"
@@ -41,7 +41,7 @@ static const char* box_blur_cl_source =
 "          mean += aux[aux_index];                                             \n"
 "          aux_index += width;                                                 \n"
 "        }                                                                     \n"
-"      out[out_index] = mean / (2 * radius + 1);                               \n"
+"      out[out_index] = mean / (float)(2 * radius + 1);                        \n"
 "    }                                                                         \n"
 "}                                                                             \n"
 ;
diff --git a/operations/common/box-blur.c b/operations/common/box-blur.c
index 11449c7..1113194 100644
--- a/operations/common/box-blur.c
+++ b/operations/common/box-blur.c
@@ -276,7 +276,7 @@ cl_process (GeglOperation       *operation,
                                              op_area->right,
                                              op_area->top,
                                              op_area->bottom,
-                                             GEGL_ABYSS_NONE);
+                                             GEGL_ABYSS_CLAMP);
 
   gint aux  = gegl_buffer_cl_iterator_add_2 (i,
                                              NULL,